From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3F946C04AAF for ; Thu, 16 May 2019 10:38:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1A98220848 for ; Thu, 16 May 2019 10:38:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727227AbfEPKiJ (ORCPT ); Thu, 16 May 2019 06:38:09 -0400 Received: from foss.arm.com ([217.140.101.70]:40846 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727187AbfEPKiG (ORCPT ); Thu, 16 May 2019 06:38:06 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id D307719F6; Thu, 16 May 2019 03:38:05 -0700 (PDT) Received: from e121650-lin.cambridge.arm.com (e121650-lin.cambridge.arm.com [10.1.196.108]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 581EF3F703; Thu, 16 May 2019 03:38:04 -0700 (PDT) From: Raphael Gault To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: jpoimboe@redhat.com, peterz@infradead.org, catalin.marinas@arm.com, will.deacon@arm.com, julien.thierry@arm.com, Raphael Gault Subject: [RFC 03/16] objtool: Move registers and control flow to arch-dependent code Date: Thu, 16 May 2019 11:36:42 +0100 Message-Id: <20190516103655.5509-4-raphael.gault@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190516103655.5509-1-raphael.gault@arm.com> References: <20190516103655.5509-1-raphael.gault@arm.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The control flow information and register macro definitions were based on the x86_64 architecture but should be abstract so that each architecture can define the correct values for the registers, especially the registers related to the stack frame (Frame Pointer, Stack Pointer and possibly Return Address). Signed-off-by: Raphael Gault --- tools/objtool/arch/x86/include/arch_special.h | 36 +++++++++++++++++++ tools/objtool/{ => arch/x86/include}/cfi.h | 0 tools/objtool/check.h | 1 + tools/objtool/special.c | 19 +--------- 4 files changed, 38 insertions(+), 18 deletions(-) create mode 100644 tools/objtool/arch/x86/include/arch_special.h rename tools/objtool/{ => arch/x86/include}/cfi.h (100%) diff --git a/tools/objtool/arch/x86/include/arch_special.h b/tools/objtool/arch/x86/include/arch_special.h new file mode 100644 index 000000000000..424ce47013e3 --- /dev/null +++ b/tools/objtool/arch/x86/include/arch_special.h @@ -0,0 +1,36 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ +#ifndef _X86_ARCH_SPECIAL_H +#define _X86_ARCH_SPECIAL_H + +#define EX_ENTRY_SIZE 12 +#define EX_ORIG_OFFSET 0 +#define EX_NEW_OFFSET 4 + +#define JUMP_ENTRY_SIZE 16 +#define JUMP_ORIG_OFFSET 0 +#define JUMP_NEW_OFFSET 4 + +#define ALT_ENTRY_SIZE 13 +#define ALT_ORIG_OFFSET 0 +#define ALT_NEW_OFFSET 4 +#define ALT_FEATURE_OFFSET 8 +#define ALT_ORIG_LEN_OFFSET 10 +#define ALT_NEW_LEN_OFFSET 11 + +#define X86_FEATURE_POPCNT (4 * 32 + 23) +#define X86_FEATURE_SMAP (9 * 32 + 20) + +#endif /* _X86_ARCH_SPECIAL_H */ diff --git a/tools/objtool/cfi.h b/tools/objtool/arch/x86/include/cfi.h similarity index 100% rename from tools/objtool/cfi.h rename to tools/objtool/arch/x86/include/cfi.h diff --git a/tools/objtool/check.h b/tools/objtool/check.h index 71e54f97dbcd..8d809de23029 100644 --- a/tools/objtool/check.h +++ b/tools/objtool/check.h @@ -23,6 +23,7 @@ #include "cfi.h" #include "arch.h" #include "orc.h" +#include "arch_special.h" #include struct insn_state { diff --git a/tools/objtool/special.c b/tools/objtool/special.c index 4e50563d87c6..fd7c928fa1d6 100644 --- a/tools/objtool/special.c +++ b/tools/objtool/special.c @@ -26,24 +26,7 @@ #include "builtin.h" #include "special.h" #include "warn.h" - -#define EX_ENTRY_SIZE 12 -#define EX_ORIG_OFFSET 0 -#define EX_NEW_OFFSET 4 - -#define JUMP_ENTRY_SIZE 16 -#define JUMP_ORIG_OFFSET 0 -#define JUMP_NEW_OFFSET 4 - -#define ALT_ENTRY_SIZE 13 -#define ALT_ORIG_OFFSET 0 -#define ALT_NEW_OFFSET 4 -#define ALT_FEATURE_OFFSET 8 -#define ALT_ORIG_LEN_OFFSET 10 -#define ALT_NEW_LEN_OFFSET 11 - -#define X86_FEATURE_POPCNT (4*32+23) -#define X86_FEATURE_SMAP (9*32+20) +#include "arch_special.h" struct special_entry { const char *sec; -- 2.17.1